Lubricator.



No. 754,972. PATENTED MAR. 22, 1904. F. J. GOLLINSON.

LUBRIGATOR.

APPLICATION FILED FEB. 25, 1903.

N0 MODEL.

Li? .A

If fCollin/som Patented March 22, 1904.

UNTTEE STATES PATENT DEETCE.

FRANK JAMES COLLINSON, OF GALVA, ILLINOIS.

LUBRICATOR.

SPECIFICATION forming part of Letters Patent No. 754,972, dated March 22, 1904.

Application filed February 25, 1903. Serial No. 145,030. (No model.)

To all whom, it may concern.

Be it known that I, FRANK J AMES COLLIN- soN, a citizen of the United States, residing at Galva, in the county of Henry and State of Illinois, have invented a new and useful Lubricator, of which the following is a specification.

My invention is an improvement in forcefeed lubricators; and the object of my construction is to provide separate cylinders, one containing a steam-driven piston and the other containing a coacting piston and a lubricatingoil. By means of this arrangement steam is not admitted into the oil-chamber, as is the case in many lubricators, and there is in consequence no danger of condensed steam freezing in the oil-chamber and impeding the flow of the oil.

Briefly considered, my invention consists of two cylinders arranged tandem fashion, open at their adjacent ends, each having a piston therein, the pistons being connected by a common stem and adapted to move freely in one direction only. Steam is admitted hehind one piston. while oil is stored in the oilcylinder in advanceof the piston in said cylinder.

In the accompanying drawings, Figure 1 is a longitudinal section through the cylinders,

the pistons and piston-rod being in elevation.

Fig. 2 is a section about on the line 2 2 of Fig. 1 looking in the direction of the oilcylinder. Fig. 3 is a side elevation of the inner end of the oil-cylinder, showing means for preventing rearward movement of the pistons. Fig. 4 is a side elevation of the steampiston and piston-rod, the two parts comprising the oil-piston being shown in section.

In the above-described drawings, A represents a suitable base which may be secured to an engine at any convenient place or may be itself an integral part of the engine. Mounted on this base is a steam-cylinder B, and facing same is a cylinder C, adapted to receive oil. These cylinders are open at their adjacent ends, their opposite end being closed by the end plates B and C, respectively. In the cylinder B is arranged a piston'B packed in any suitable manner and having the stem D, to which is secured a rack-bar D. A steam-pipe E, having a throttle-valve E, opens into the cylinder B in the rear of the piston, and an exhaust-valve E is also provided. A throttlevalve rod E extends from the valve E to the engine-cab, (not shown,) where it may be op erated by hand or connected in any wellknown way to the throttle-valve of the engine, so as to work automatically with it. A feedopening, closed by a plug F, is formed in the forced rearwardly by pressure of oil in the cylinder 0, a ratchet-wheelK is secured on the shaft K, it being understood that the ratchet and cog are fixed on the shaft and that the latter is revoluble, and a pawl K pivoted to the bracket adjacent the ratchet, engages. the latter. A handle K is secured to one end of the shaft. The purpose of all these various parts will fully appear in the description of the operation of the lubricator.

I have shown the piston C as comprising two separate parts and a packing-ring. The

part C is a disk with a forwardly-extending annular flange C while the disk (3* is adapted to fit within the flange C and has an outwardly-extending flange C The piston-rod is threaded adjacent each end, and the disks C C have central threaded perforations.

Packing-rope O is wrapped around the periphery of the disk (1*, held in place by the flange C As the disk C fits into the disk 0, the packing material will be pressed between the two flanges and forced outward, thus insuringa tight fit ofthe complete piston. Both pistons are held in position by suitable nuts.

The operation of my device is as follows: The pistons being in the position shown in Fig. 1 and the cylinder Ufilled with oil, steam is admitted into the cylinder B, forcing both pistons forward and forcing oil through the IOO pipe Gr, sight-tube G, and feed-pipe G A valve G controls the amount of oil fed to the sight-tube and may be set so as to admit it drop by drop or in a continuous stream. It is understood that only sufficient steam is admitted to the cylinder B to force out the amount of oil required, and the movement of the pistons each time steam is admitted may be so slight as to be hardly noticeable. To prevent the pressure of the oil driving back the pistons when steam is cut off, the rack, cog, ratchet, and pawl are provided. When the oil-cylinder has been emptied, valve E is closed and E is opened. Valve J is also opened, admitting air into the cylinder B. The pawlis thrown out of engagement with the ratchet, and by means of the handle the pistons are moved back to their original positions. The cylinder is then refilled through the filling-vent. No steam enters the cylinder 0, and no water accumulates therein at any time.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A lubricator comprising two cylinders mounted tandem, a piston in each cylinder, a

rod connecting the pistons, said rod having rack-teeth formed on it, a rotatable shaft arranged between the pistons and transverse to the rod, a cog-wheel on said shaft meshing with the rack-teeth on the rod, a ratchet on said shaft, a bracket, a pawl pivoted to the bracket and adapted to engage the ratchet, and means for admitting steam into one cylinder in the rear of the piston therein, an oilfeed pipe leading from the other cylinder, and means for rotating the shaft.

2. A device of the kind described comprising a steam-cylinder, an oil-cylinder in advance of and spaced from the steam-cylinder, a piston in each cylinder, a piston-rod having arack-bar formed thereon connecting the pistons, a revoluble shaft carrying a cog-wheel, said wheel meshing with the rack, a handle on one end of said shaft, means for admitting steam'in the rear of the piston in the steamchamber, means for conveying oil from the oil-cylinder, and means for locking the pistons against rearward movement.

FRANK JAMES COLLINSON.

itnesses:

A. E. FAHNsTnAN, J. O. STEPHENSON. 

